2006
DOI: 10.1016/j.ejcts.2006.03.002
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Left ventricular geometry in normal and post-anterior myocardial infarction patients: sphericity index and ‘new’ conicity index comparisons☆

Abstract: Background: Anterior myocardial infarction leads a sequence of structural changes that alter the size and the shape of the left ventricle. Efforts to assess shape have been made by global left ventricular (LV) chamber analysis (sphericity index, SI) but this analysis does not detect regional shape abnormalities like those at the apical level, which precede global ventricular dilatation. Objective: The present study will introduce a new analysis of regional apical changes in 52 normal subjects and in 92 patient… Show more

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Cited by 121 publications
(90 citation statements)
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References 23 publications
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“…The RESTORE group has adopted a similar endoventricular circular patch plasty for anterior aneurysms-the SAVER technique [48]. This ensures a more physiologic ellipsoid shape to the LV than linear repair, as evidenced by quantitative indices like the sphericity index [49]. This technique has been applied to both dyskinetic and akinetic scars by Dor.…”
Section: Surgical Ventricular Restorationmentioning
confidence: 99%
“…The RESTORE group has adopted a similar endoventricular circular patch plasty for anterior aneurysms-the SAVER technique [48]. This ensures a more physiologic ellipsoid shape to the LV than linear repair, as evidenced by quantitative indices like the sphericity index [49]. This technique has been applied to both dyskinetic and akinetic scars by Dor.…”
Section: Surgical Ventricular Restorationmentioning
confidence: 99%
“…According to Di Donato, the sphericity index is even more valuable than LV dimensions and volumes. It significantly correlates with the degree of MR and, conversely, does not increase even in large ventricles without MR [16].…”
Section: Discussionmentioning
confidence: 91%
“…While a variety of techniques for quantitative evaluation of LV volume have become part of standard clinical practice [1][2][3], the development of tools for quantitative evaluation of ventricular shape has been explored only partially [4][5][6][7]. This is despite several studies indicating that LV shape analysis may be potentially useful and could be used in conjunction with different imaging modalities, including radionuclide ventriculography [8,9], electron beam computed tomography [10] and ultrasound images [11][12][13][14]. Moreover, LV function has been studied both on a global and regional basis, but previous studies have focused on global LV shape, while only initial feasibility data have been published regarding local LV shape [14,15].…”
Section: Introductionmentioning
confidence: 93%